User blog comment:JayAaerow/Administrative Blog: Finding Sources/@comment-6769189-20150319175451/@comment-967403-20150319214439

I have friends who's first language isn't english yet has used the world "similar" just fine. Kamiya obviously has a fine grasp on the english language. He tweeted all in english almost a day ago and it's fine. (It's kinda weird though. He's being block happy)

I don't know. They're approximate. They're not definite. It can be a little over 10 years to 15 for me. Or maybe lower 9 or 8. Not like that matters. What you consider "about" in terms of time isn't going to be same as what Capcom says, since they know the definites (or we think so at least).